Rule Library

Sigma Rules

7 rules found

3,707Total
3,116Detection
451Emerging
137Hunting
Detectionmediumexperimental

FortiGate - New Administrator Account Created

Detects the creation of an administrator account on a Fortinet FortiGate Firewall.

fortigateevent
TA0003 · PersistenceT1136.001 · Local Account
Marco Pedrinazzi (InTheCyber)Sat Nov 01network
Detectionmediumexperimental

FortiGate - Firewall Address Object Added

Detects the addition of firewall address objects on a Fortinet FortiGate Firewall.

fortigateevent
TA0005 · Defense EvasionT1562 · Impair Defenses
Marco Pedrinazzi (InTheCyber)Sat Nov 01network
Detectionmediumexperimental

FortiGate - New Firewall Policy Added

Detects the addition of a new firewall policy on a Fortinet FortiGate Firewall.

fortigateevent
TA0005 · Defense EvasionT1562 · Impair Defenses
Marco Pedrinazzi (InTheCyber)Sat Nov 01network
Detectionmediumexperimental

FortiGate - New Local User Created

Detects the creation of a new local user on a Fortinet FortiGate Firewall. The new local user could be used for VPN connections.

fortigateevent
TA0003 · PersistenceT1136.001 · Local Account
Marco Pedrinazzi (InTheCyber)Sat Nov 01network
Detectionmediumexperimental

FortiGate - New VPN SSL Web Portal Added

Detects the addition of a VPN SSL Web Portal on a Fortinet FortiGate Firewall. This behavior was observed in pair with modification of VPN SSL settings.

fortigateevent
TA0003 · PersistenceTA0001 · Initial AccessT1133 · External Remote Services
Marco Pedrinazzi (InTheCyber)Sat Nov 01network
Detectionmediumexperimental

FortiGate - User Group Modified

Detects the modification of a user group on a Fortinet FortiGate Firewall. The group could be used to grant VPN access to a network.

fortigateevent
TA0003 · PersistenceTA0004 · Privilege Escalation
Marco Pedrinazzi (InTheCyber)Sat Nov 01network
Detectionmediumexperimental

FortiGate - VPN SSL Settings Modified

Detects the modification of VPN SSL Settings (for example, the modification of authentication rules). This behavior was observed in pair with the addition of a VPN SSL Web Portal.

fortigateevent
TA0003 · PersistenceTA0001 · Initial AccessT1133 · External Remote Services
Marco Pedrinazzi (InTheCyber)Sat Nov 01network